PAGER - M 3.5 - 26.6 km (16.5 mi) NW of San Clemente Is. (NW tip), CA

Alert level does not include impacts from earthquake-related hazards such as tsunamis, landslides, fires or liquefaction.

Earthquake Shaking Alert Level: GREEN

Download Alert PDF What's this?Thursday, May 31st, 2012 at 06:42:55 UTC (22:42:55 local)Location: 33.2° N, 118.8° WDepth: 5kmEvent Id: CI15157065Alert Version: 7Created: 1 day, 7 hours after earthquake.

Alert Information

Green alert for shaking-related fatalities and economic losses. There is a low likelihood of casualties and damage.

Estimated Fatalities

ESTIMATED FATALITY ALERT: GREEN
ESTIMATED FATALITIES (LEVEL)	Probability (%)
0 (GREEN)	99
1 to 9 (YELLOW)	1
10 to 99 (YELLOW)	0
100 to 999 (ORANGE)	0
1 to 10 thousand (RED)	0
10 to 100 thousand (RED)	0
100 thousand + (RED)	0

Estimated Economic Losses

ESTIMATED ECONOMIC ALERT: GREEN
ESTIMATED VALUE IN USD (LEVEL)	Probability (%)
0 to 1 million (GREEN)	99
1 to 10 million (YELLOW)	1
10 to 100 million (YELLOW)	0
100 million to 1 billion (ORANGE)	0
1 to 10 billion (RED)	0
10 to 100 billion (RED)	0
100 billion + (RED)	0

Detailed Information

Estimated Population Exposed to Earthquake Shaking
Estimated Modified Mercalli Intensity		I	II-III	IV	V	VI	VII	VIII	IX	X
Est. Population Exposure		3,499k*	3,251k	0	0	0	0	0	0	0
Perceived Shaking		Not Felt	Weak	Light	Moderate	Strong	Very Strong	Severe	Violent	Extreme
Potential Structure Damage	Resistant	none	none	none	V. Light	Light	Moderate	Moderate/Heavy	Heavy	V. Heavy
Potential Structure Damage	Vulnerable	none	none	none	Light	Moderate	Moderate/Heavy	Heavy	V. Heavy	V. Heavy

*Estimated exposure only includes population within calculated shake map area

Population Exposure
Population per ~1 sq. km. from LandScan

Structure Information Summary

Overall, the population in this region resides in structures that are highly resistant to earthquake shaking, though some vulnerable structures exist.

Historical Earthquakes (with MMI)

Date (UTC)	Dist (km)	Mag	Max MMI (#)	Shaking Deaths
1986-07-13	92	5.8	V (10m)	0
2003-12-22	340	6.6	VII (213)	2
1994-01-17	112	6.7	IX (181k)	33

Recent earthquakes in this area have caused secondary hazards such as landslides and liquefaction that might have contributed to losses.

Selected Cities Exposedfrom GeoNames Database of Cities with 1,000 or more residents.

MMI	City	Population
II	Fountain Valley	56k
II	Garden Grove	167k
II	Avalon	3k
II	Westminster	90k
II	Seal Beach	24k
II	Santa Ana	343k
II	Huntington Beach	196k
II	Irvine	189k
II	Long Beach	483k
II	Torrance	145k
I	Anaheim	328k

(k = x1,000)

Nearby Events in the EXPO-CAT Earthquake Catalog
#	Date/Time	Mag	Lat, Lon, Depth	Country	Max MMI (Exposed)	Deaths		Secondary Effects
#	Date/Time	Mag	Lat, Lon, Depth	Country	Max MMI (Exposed)	Shaking	Total	Secondary Effects
1	1973-02-21 14:45 UTC	5.9	34.06° N, 119.05° W 6km	US	VIII (4 k)	0	0
2	1978-05-05 21:03 UTC	5.5	32.22° N, 115.32° W 5km	MX	VIII (97)	0	0
3	1978-08-13 22:54 UTC	5.8	34.39° N, 119.64° W 8km	US	VIII (40 k)	0	0
4	1979-03-15 21:07 UTC	5.5	34.2° N, 116.53° W 15km	US	VII (744)	0	0
5	1979-10-15 23:17 UTC	6.5	32.82° N, 115.64° W 9km	US	IX (3 k)	0	0
6	1979-10-16 05:49 UTC	5.6	33.02° N, 115.57° W 5km	US	VIII (611)	0	0
7	1979-10-16 06:19 UTC	5.1	32.73° N, 115.76° W 10km	US	VII (77)	0	0
8	1979-10-16 06:58 UTC	5.6	32.95° N, 115.62° W 10km	US	VIII (287)	0	0
9	1979-10-16 23:16 UTC	5.5	32.92° N, 115.55° W 4km	US	VIII (40)	0	0
10	1980-02-25 10:47 UTC	5.6	33.52° N, 116.55° W 6km	US	VII (847)	0	0
11	1980-06-09 03:28 UTC	6.3	32.27° N, 114.91° W 5km	MX	IX (336)	1	1
12	1981-04-26 12:09 UTC	5.9	33.12° N, 115.64° W 1km	US	VIII (11)	0	0
13	1981-09-04 15:50 UTC	5.8	33.9° N, 119.03° W 15km	US	VI (13 k)	0	0
14	1983-05-02 23:42 UTC	6.3	36.22° N, 120.3° W 10km	US	IX (29)	0	0
15	1983-05-02 23:46 UTC	5.7	36.23° N, 120.29° W 8km	US	VIII (1 k)	0	0
16	1983-07-09 07:40 UTC	5.1	36.17° N, 120.37° W 1km	US	VII (10 k)	0	0
17	1983-07-22 02:39 UTC	5.7	36.2° N, 120.34° W 7km	US	VII (1 k)	0	0
18	1985-08-04 12:01 UTC	6.1	36.14° N, 120.11° W 15km	US	IX (713)	0	0
19	1986-07-08 09:20 UTC	6	33.97° N, 116.78° W 12km	US	VIII (8 k)	0	0	landslide
20	1986-07-13 13:47 UTC	5.8	33.05° N, 117.85° W 2km	US	V (9,528 k)	0	1	landslide
21	1987-10-01 14:42 UTC	5.9	34.06° N, 118.13° W 14km	US	VIII (20 k)	8	8
22	1987-10-04 10:59 UTC	5.2	34.02° N, 118.14° W 11km	US	VII (453 k)	0	1
23	1987-11-24 01:54 UTC	6	33.22° N, 115.79° W 15km	US	VIII (250)	0	2
24	1987-11-24 13:15 UTC	6.5	33.07° N, 115.95° W 2km	US	IX (599)	0	0
25	1988-02-11 15:25 UTC	4.8	34.08° N, 118.05° W 12km	US	VII (11 k)	0	1
26	1988-12-03 11:38 UTC	5	34.15° N, 118.13° W 13km	US	VI (1,090 k)	0	0
27	1989-01-19 06:53 UTC	5.2	33.91° N, 118.7° W 9km	US	VI (14 k)	0	0
28	1990-02-28 23:43 UTC	5.7	34.14° N, 117.75° W 3km	US	VIII (12 k)	0	0
29	1991-06-28 14:43 UTC	5.6	34.24° N, 118.01° W 11km	US	VII (8 k)	1	1
30	1992-04-23 04:50 UTC	6.2	33.87° N, 116.52° W 4km	US	VIII (16 k)	0	0
31	1992-06-28 11:57 UTC	7.3	34.18° N, 116.53° W 11km	US	IX (2 k)	1	1
32	1992-06-28 15:05 UTC	6.5	34.29° N, 116.82° W 12km	US	IX (2 k)	0	0	landslide
33	1992-06-29 16:01 UTC	5.5	33.82° N, 116.44° W 15km	US	VIII (8 k)	0	0
34	1992-07-11 18:14 UTC	5.7	34.96° N, 118.19° W 15km	US	VIII (568)	0	0
35	1992-11-27 16:00 UTC	5.6	34.23° N, 117.01° W 5km	US	VII (4 k)	0	0
36	1994-01-17 12:30 UTC	6.7	34.16° N, 118.58° W 11km	US	IX (181 k)	33	33	landslide, liquefaction
37	1994-01-17 23:33 UTC	5.8	34.27° N, 118.79° W 8km	US	VIII (70 k)	0	0
38	1994-01-18 00:43 UTC	5.5	34.26° N, 118.89° W 17km	US	VII (97 k)	0	0
39	1995-09-20 23:27 UTC	5.5	35.63° N, 117.73° W 15km	US	VIII (852)	0	0
40	1999-10-16 09:46 UTC	7.1	34.52° N, 116.44° W 5km	US	IX (17 k)	0	0
41	1999-10-16 09:59 UTC	5.8	34.56° N, 116.79° W 9km	US	VIII (19)	0	0
42	1999-10-16 12:57 UTC	5.7	34.27° N, 116.23° W 12km	US	VIII (201)	0	0
43	2001-12-08 23:36 UTC	5.7	32.05° N, 114.9° W 9km	MX	VIII (72)	0	0
44	2002-02-22 19:32 UTC	5.5	32.38° N, 115.19° W 9km	MX	VIII (8 k)	0	0
45	2003-12-22 19:15 UTC	6.6	35.62° N, 121.07° W 16km	US	VII (213)	2	2	landslide, liquefaction
46	2004-09-28 17:15 UTC	6	35.75° N, 120.32° W 5km	US	VII (160)	0	0
47	2005-06-16 20:53 UTC	4.9	33.95° N, 117.05° W 18km	US	VI (63 k)	0	0

MMI	City	Population
II	Fountain Valley	56k
II	Avalon	3k
II	Garden Grove	167k
II	Westminster	90k
II	Seal Beach	24k
II	Santa Ana	343k
II	Huntington Beach	196k
II	Rossmoor	11k
II	Tustin	69k
II	Los Alamitos	12k
II	Stanton	38k
II	Cypress	47k
II	Lakewood	82k
II	Hawaiian Gardens	16k
II	Irvine	189k
II	Compton	97k
II	East Compton	10k
II	Bellflower	76k
II	Newport Beach	79k
II	Paramount	57k
II	Costa Mesa	109k
II	La Palma	16k
II	Cerritos	53k
II	Orange	129k
II	Willowbrook	35k
II	Long Beach	483k
II	Pico Rivera	66k
II	Placentia	49k
II	Signal Hill	11k
II	West Carson	22k
II	Carson	96k
II	Lomita	21k
II	Rancho Palos Verdes	43k
II	Palos Verdes Estates	14k
II	Rolling Hills	2k
II	Rolling Hills Estates	8k
II	Redondo Beach	68k
II	Torrance	145k
II	Hermosa Beach	20k
II	San Joaquin Hills	3k
II	West Compton	6k
II	Chino Hills	67k
II	Dana Point	36k
II	La Mirada	50k
II	Laguna Beach	24k
I	Aliso Viejo	41k
I	Alondra Park	8k
I	Anaheim	328k
I	Artesia	17k
I	Bell	38k
I	Bell Gardens	46k
I	Brea	40k
I	Buena Park	79k
I	Commerce	14k
I	Coto De Caza	19k
I	Cudahy	26k
I	Del Aire	10k
I	Downey	112k
I	East La Mirada	10k
I	El Segundo	17k
I	Foothill Ranch	12k
I	Fullerton	135k
I	Gardena	61k
I	Hacienda Heights	54k
I	Hawthorne	87k
I	Huntington Park	64k
I	Inglewood	116k
I	La Habra	60k
I	La Habra Heights	6k
I	Ladera Heights	7k
I	Laguna Hills	31k
I	Laguna Niguel	66k
I	Laguna Woods	20k
I	Lake Forest	77k
I	Las Flores	6k
I	Lawndale	33k
I	Lennox	23k
I	Los Serranos	7k
I	Lynwood	72k
I	Malibu	13k
I	Manhattan Beach	37k
I	Marina del Rey	9k
I	Maywood	29k
I	Mission Viejo	96k
I	Norwalk	109k
I	Portola Hills	9k
I	Rancho Santa Margarita	51k
I	Rowland Heights	52k
I	San Clemente	62k
I	San Juan Capistrano	35k
I	Santa Fe Springs	16k
I	South Gate	100k
I	South Whittier	59k
I	Trabuco Canyon	3k
I	North Tustin	24k
I	Villa Park	6k
I	Walnut Park	17k
I	West Athens	9k
I	Westmont	32k
I	Whittier	86k
I	Yorba Linda	65k

(k = x1,000)

PAGER content is automatically generated, and only considers losses due to structural damage. Limitations of input data, shaking estimates, and loss models may add uncertainty. PAGER results are generally available within 30 minutes of the earthquake’s occurrence. However, information on the extent of shaking will be uncertain in the minutes and hours following an earthquake and typically improves as additional sensor data and reported intensities are acquired and incorporated into models of the earthquake's source. Users of PAGER estimates should account for uncertainty and always seek the most current PAGER release for any earthquake.